Update vendored libs

vendor/github.com/DataDog/zstd/zstd_ldm.h

@@ -1,12 +1,10 @@
-#ifndef USE_EXTERNAL_ZSTD
 /*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
- * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_LDM_H
@@ -25,10 +23,6 @@ extern "C" {
 
 #define ZSTD_LDM_DEFAULT_WINDOW_LOG ZSTD_WINDOWLOG_LIMIT_DEFAULT
 
-void ZSTD_ldm_fillHashTable(
-            ldmState_t* state, const BYTE* ip,
-            const BYTE* iend, ldmParams_t const* params);
-
 /**
  * ZSTD_ldm_generateSequences():
  *
@@ -67,7 +61,6 @@ size_t ZSTD_ldm_generateSequences(
  */
 size_t ZSTD_ldm_blockCompress(rawSeqStore_t* rawSeqStore,
             ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
-            ZSTD_paramSwitch_e useRowMatchFinder,
             void const* src, size_t srcSize);
 
 /**
@@ -75,17 +68,11 @@ size_t ZSTD_ldm_blockCompress(rawSeqStore_t* rawSeqStore,
  *
  * Skip past `srcSize` bytes worth of sequences in `rawSeqStore`.
  * Avoids emitting matches less than `minMatch` bytes.
- * Must be called for data that is not passed to ZSTD_ldm_blockCompress().
+ * Must be called for data with is not passed to ZSTD_ldm_blockCompress().
  */
 void ZSTD_ldm_skipSequences(rawSeqStore_t* rawSeqStore, size_t srcSize,
     U32 const minMatch);
 
-/* ZSTD_ldm_skipRawSeqStoreBytes():
- * Moves forward in rawSeqStore by nbBytes, updating fields 'pos' and 'posInSequence'.
- * Not to be used in conjunction with ZSTD_ldm_skipSequences().
- * Must be called for data with is not passed to ZSTD_ldm_blockCompress().
- */
-void ZSTD_ldm_skipRawSeqStoreBytes(rawSeqStore_t* rawSeqStore, size_t nbBytes);
 
 /** ZSTD_ldm_getTableSize() :
  *  Estimate the space needed for long distance matching tables or 0 if LDM is
@@ -116,5 +103,3 @@ void ZSTD_ldm_adjustParameters(ldmParams_t* params,
 #endif
 
 #endif /* ZSTD_FAST_H */
-
-#endif /* USE_EXTERNAL_ZSTD */